Uniting high strength with large ductility in an additively manufactured fine-grained aluminum alloy

被引：0
|
作者：
Cha, Wenhao [1 ,2 ]
Li, Gan [3 ,4 ,5 ,6 ]
He, Xi [6 ]
Li, Jie [7 ]
Li, Daoxiu [7 ]
Liu, Xiangfa [7 ]
Zhu, Qiang [6 ]
Liu, Sida [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Aerosp, Lab Multiscale Mech & Med Sci, SV LAB, Xian 710049, Peoples R China
[2] Rhein Westfal TH Aachen, Fac Georesources & Mat Engn, Aachen, Germany
[3] City Univ Hong Kong Matter Sci Res Inst Futian, Shenzhen, Peoples R China
[4] City Univ Hong Kong, Ctr Adv Struct Mat, Greater Bay Joint Div, Shenyang Natl Lab Mat Sci,Shenzhen Res Inst, Shenzhen, Peoples R China
[5] City Univ Hong Kong, Dept Mech Engn, Hong Kong, Peoples R China
[6] Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen Key Lab Addit Mfg High Performance Mat, Shenzhen 518055, Peoples R China
[7] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China
来源：
MATERIALS RESEARCH LETTERS | 2025年
基金：
中国国家自然科学基金;
关键词：
Additive manufacturing; powder bed fusion - laser beam; AlSi10Mg alloy; Al-Ti-C-B master alloy; grain refinement; LASER MELTED ALSI10MG; MECHANICAL-PROPERTIES; HEAT-TREATMENT; FRACTURE-BEHAVIOR; MICROSTRUCTURE; AL-12SI;
D O I：
10.1080/21663831.2024.2449175
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Actualizing the near net-shaping of lightweight aluminum (Al) alloys with both superior mechanical performance and complex geometry remains challenging. To address this issue, novel Al-Ti-C-B (TCB) master alloy powders were tailored as effective inoculators and introduced into the AlSi10Mg alloy powders to promote the heterogeneous nucleation of alpha-Al during powder bed fusion using laser beam (PBF-LB), leading to pronounced heterogeneous microstructure with bimodal fine-grains and improved distribution of eutectic Si. The modified alloy with a more refined and homogeneous microstructure exhibited an excellent strength-ductility combination due to microstructure modification, outperforming most previously reported commercial Al-Si alloys.
引用
收藏
页数：9
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